| ebay.co.uk | n=3 | €3,81 | +167% |
| ebay.de | n=2 | €2,38 | +67% |
| ebay.com | n=12 | €1,43 | — |
この価格の計算方法
| 根拠 | 件数 | 経過 | 値 vᵢ | 重み gᵢ |
|---|---|---|---|---|
| en LP ÷ 0.8008 × 0.9854 | 8 | 39 日 | €1,43 | 1.3 |
実測誤差（時代×言語のバックテスト）: ±20 %
ゲートが緑でないため価格としては表示されません。
| 根拠 | 件数 | 経過 | 値 vᵢ | 重み gᵢ |
|---|---|---|---|---|
| eigene LP-Verkäufe ÷ 0.8008 | 8 | 39 日 | €1,45 | 2.81 |
実測誤差（時代×言語のバックテスト）: ±22 %
ゲートが緑でないため価格としては表示されません。
| 根拠 | 件数 | 経過 | 値 vᵢ | 重み gᵢ |
|---|---|---|---|---|
| en LP ÷ 0.8008 × 1.0288 | 8 | 39 日 | €1,49 | 1.96 |
実測誤差（時代×言語のバックテスト）: ±2 %
ゲートが緑でないため価格としては表示されません。
No PSA numbers for this print yet — in any language.
#122 · SEC
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#126 · UFrequently asked questions
Is it worth grading Great Ball Power Keepers 77/108?
A PSA 10 currently sells for about €266,35, raw the card sits at €3,06 — 87,0× as much. Mathematically, submitting returns €266,35 on average, before fees and shipping. Rule of thumb: submit when the value at a realistic grade is at least double the raw value — which is the case here. Centering decides it: an off-centre card will not get a 10.
What will I get for Great Ball Power Keepers 77/108 if I want to sell quickly?
Half of all sales fell between €1,27 and €2,61, with a median of €1,72. Selling fast lands you nearer the lower end; with patience, good photos and a complete title the upper end is achievable.
Below which price is an offer for Great Ball Power Keepers 77/108 unrealistic?
The cheapest genuine sales were around €0,94. Offers well below €0,56 are typically fakes, mislabelled cards or a different variant — ask for photos of all four borders and a close-up of the surface.
How does lastsold determine the market value?
lastsold uses only real sales — eBay plus auction houses like Goldin & Fanatics — recent sales count more (recency weighting), outliers and fakes are removed. It's not an estimate but actual sold prices, separated by condition, language and grading.